1 files changed, 48 insertions, 0 deletions
diff --git a/clang/test/CodeGen/asm-inout.c b/clang/test/CodeGen/asm-inout.c
new file mode 100644
index 0000000..c7d1aec
--- /dev/null
+++ b/clang/test/CodeGen/asm-inout.c
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s
+// PR3800
+int *foo(void);
+
+// CHECK: @test1
+void test1() {
+  // CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo()
+  // CHECK: call void asm "foobar", "=*m,*m,~{dirflag},~{fpsr},~{flags}"(i32* [[REGCALLRESULT]], i32* [[REGCALLRESULT]])
+  asm ("foobar" : "+m"(*foo()));
+}
+
+// CHECK: @test2
+void test2() {
+  // CHECK: [[REGCALLRESULT:%[a-zA-Z0-9\.]+]] = call i32* @foo()
+  // CHECK: load i32* [[REGCALLRESULT]]
+  // CHECK: call i32 asm
+  // CHECK: store i32 {{%[a-zA-Z0-9\.]+}}, i32* [[REGCALLRESULT]]
+  asm ("foobar" : "+r"(*foo()));
+}
+
+// PR7338
+// CHECK: @test3
+void test3(int *vout, int vin)
+{
+  // CHECK: call void asm "opr $0,$1", "=*r|m|r,r|m|r,~{edi},~{dirflag},~{fpsr},~{flags}"
+  asm ("opr %[vout],%[vin]"
+       : [vout] "=r,=m,=r" (*vout)
+       : [vin] "r,m,r" (vin)
+       : "edi");
+}
+
+// PR8959 - This should implicitly truncate the immediate to a byte.
+// CHECK: @test4
+int test4(volatile int *addr) {
+  unsigned char oldval;
+  // CHECK: call i8 asm "frob $0", "=r,0{{.*}}"(i8 -1)
+  __asm__ ("frob %0" : "=r"(oldval) : "0"(0xff));
+  return (int)oldval;
+}
+
+// <rdar://problem/10919182> - This should have both inputs be of type x86_mmx.
+// CHECK: @test5
+typedef long long __m64 __attribute__((__vector_size__(8)));
+__m64 test5(__m64 __A, __m64 __B) {
+  // CHECK: call x86_mmx asm "pmulhuw $1, $0\0A\09", "=y,y,0,~{dirflag},~{fpsr},~{flags}"(x86_mmx %{{.*}}, x86_mmx %{{.*}})
+  asm ("pmulhuw %1, %0\n\t" : "+y" (__A) : "y" (__B));
+  return __A;
+}